If one player knows just how important the Manchester United v Liverpool fixture is to both clubs it has to be Michael Owen.
The striker played at Liverpool from a young age - at the club from 1991 until 2004, scoring 158 goals in 297 games for The Reds.
He then had stints at Real Madrid and Newcastle United before shocking Liverpool fans by deciding on a switch to Manchester United in 2009.
After three seasons at Old Trafford and one injury-ravaged spell at Stoke City he has retired and moved into the world of TV punditry - meaning he is certainly something of a Tweet heavy user.
So his views on the game today were always going to be sought after - and he expressed them clearly on social media.
Owen was amazed at how poor United were performing as well as their complete lack of pace. Meanwhile he was also impressed with Liverpool - while he simply could not believe that Rafael Da Silva was not sent off, something we can all agree with.
Here are some of his Tweets from this afternoon…
Rafael so lucky not to be sent off. Brilliant penalty by Gerrard. No positives from United's performance so far.— michael owen (@themichaelowen) March 16, 2014
Another sensational penalty from Gerrard. Horror story for United.— michael owen (@themichaelowen) March 16, 2014
Think of United great teams of the past. All had pace. It's non existent in this team. Can't have Mata as a wide man. Need to play inside.— michael owen (@themichaelowen) March 16, 2014
Save of the season. This could have been 4 or 5 today.— michael owen (@themichaelowen) March 16, 2014